Re: generic-adc-battery volatge-to-percent formula

[Sebastian Reichel <sre@kernel.org>]

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Hi,

On Mon, Feb 15, 2016 at 12:53:04PM +0100, Pavel Machek wrote:
> > >> some time ago I did post series which added some conversion table from
> > >> voltage to percent for charging and discharging states [1] in
> > >> twl4030_madc driver. This approach was not accepted and we still want
> > >> to have something like that in kernel. We re-think re-thinking
> > >> original idea and also get reference where Pavel point us to formula
> > >> which could be used for computing voltage-to-percent conversion [2]
> > >>
> > >> What about adding this formula as a default for the
> > >> voltage-to-percent-conversion to the generic-adc-battery
> > >> driver (and converting it to DT)? Would that be a better
> > >> solution than a table driven and twl4030 only driver?
> > >
> > > I'd say battery, yes. And maybe even better would be putting it into
> > > lib/ or seaparet driver, as it does not really depend on IIO? You just
> > > supply voltage, current and internal resistance, and it produces number...
> > >
> > Can we put this small helper to some common power header file
> > which can be then included to driver which can use this formula.
> > I think it's better way then adding it to /lib as it won't be
> > used in whole kernel tree just in power. What do you think?
> > Thanks.
> 
> Sounds good to me.

Sounds fine for me, too.

-- Sebastian

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